CN105318646B - Frequency conversion refrigerator refrigeration control method, device and frequency conversion refrigerator - Google Patents
Frequency conversion refrigerator refrigeration control method, device and frequency conversion refrigerator Download PDFInfo
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- CN105318646B CN105318646B CN201510309846.8A CN201510309846A CN105318646B CN 105318646 B CN105318646 B CN 105318646B CN 201510309846 A CN201510309846 A CN 201510309846A CN 105318646 B CN105318646 B CN 105318646B
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Abstract
The invention discloses a kind of frequency conversion refrigerator refrigeration control methods, by control system with when a wherein refrigeration compartment is gone up naturally to corresponding turn-on temperature, another refrigeration compartment enters corresponding shutoff temperature Toff1Calculate the target operating frequency of compressor in real time for target, and the operation of compressor is adjusted with the real-time target operating frequency obtained that calculates, until the either case that the refrigeration compartment freezed enters corresponding shutoff temperature and enters in corresponding turn-on temperature in the refrigeration compartment risen again occurs.The invention also discloses a kind of frequency conversion refrigerator refrigeration control device, frequency conversion refrigerators.Frequency conversion refrigerator refrigeration control method provided by the present invention can keep the real time temperature of two refrigeration chambers to be located in corresponding flat-temperature zone, and compressor can be kept so that lower running frequency is run and reduces the start-stop frequency of compressor to greatest extent, to effectively extend the service life of compressor and effectively reduce the noise caused by high frequent starts.
Description
Technical field
The present invention relates to refrigerator art more particularly to a kind of frequency conversion refrigerator refrigeration control method, a kind of frequency conversion refrigerators
Refrigeration control device and a kind of frequency conversion refrigerator with the frequency conversion refrigerator refrigeration control device.
Background technology
With the development of refrigerator converter technique, frequency conversion refrigerator has more and more come into people’s lives.In existing change
In frequency refrigerator, the compressor of frequency conversion refrigerator still needs frequent start-stop, i.e. the start-stop frequency of compressor is still higher, compressor
Frequent starting can lead to problems such as service life reduce, noise it is big.
Invention content
The main purpose of the present invention is to provide a kind of frequency conversion refrigerator refrigeration control method, a kind of frequency conversion refrigerator refrigeration controls
Device and a kind of frequency conversion refrigerator with the frequency conversion refrigerator refrigeration control device, it is intended to solve existing frequency conversion refrigerator compressor
The still higher technical problem of start-stop frequency.
To achieve the above object, a kind of frequency conversion refrigerator refrigeration control method provided by the invention, the frequency conversion refrigerator include
First refrigeration compartment and the second refrigeration compartment, the frequency conversion refrigerator refrigeration control method include the following steps：
Obtain the first temperature T of first refrigeration compartment1With the second temperature T of second refrigeration compartment2, and judge
The first temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, the first shutoff temperature Toff1, and
The second temperature T2With the second turn-on temperature T of preset second refrigeration compartmenton2, the second shutoff temperature Toff2Between
Magnitude relationship；
Work as Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, to work as second refrigeration compartment by the second temperature T2
Naturally go up to the second turn-on temperature Ton2When, first refrigeration compartment is by the first temperature T1Into described first
Shutoff temperature Toff1For target, the first object running frequency F of compressor is calculateda1；
The compressor is controlled with first object running frequency Fa1It runs and freezes to first refrigeration compartment, until institute
It states the first refrigeration compartment and enters the first shutoff temperature Toff1Enter second turn-on temperature with second refrigeration compartment
Ton2In either case occur.
Preferably, described to work as second refrigeration compartment by the second temperature T2Naturally go up to second booting
Temperature Ton2When, first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target, calculate
The first object running frequency F of compressora1The step of specifically include：
According to the second temperature T2With the second turn-on temperature Ton2It calculates and obtains second refrigeration compartment by described
Second temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tn；
It is risen again time t according to the expectionn, the first temperature T1With the first shutoff temperature Toff1It calculates and obtains institute
State the expection cooling rate S of the first refrigeration compartmentn；
According to the expected cooling rate SnCalculate the first object running frequency F for obtaining the compressora1。
Preferably, described according to the second temperature T2With the second turn-on temperature Ton2It calculates and obtains second system
Cold compartment is by the second temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tnThe step of before also wrap
It includes：
Second refrigeration compartment is obtained from the second temperature T2Second compartment temperature after the minimum time t that rises again of rise
T2’；
Second refrigeration compartment is obtained by the second temperature T for calculating2Go up to the second turn-on temperature Ton2
Expection rise again time tnFormula be：tn=(T2-Ton2)/(T2-T2’)*t；
For calculating the expection cooling rate S for obtaining first refrigeration compartmentnFormula be：
Sn=(T1-Toff1)/tn；
It is described according to the expected cooling rate SnCalculate the first object running frequency F for obtaining the compressora1Step
Further include before rapid：
Obtain the environment temperature T of the indoor environment residing for the frequency conversion refrigeratora；
For calculating the first object running frequency F for obtaining the compressora1Formula be：
Fa1=Fref+(Ta-Tref)*α2；
Wherein TrefFor with TaThe highest reference ambient temperature of the degree of correlation, FrefIt is the preset frequency conversion refrigerator in TrefUnder
Reference operation frequency, α=[(Ta- Tref)/tn- Sn]/tn 2。
Preferably, the control compressor is with first object running frequency Fa1Operation and to first refrigeration compartment
Refrigeration, until first refrigeration compartment enters the first shutoff temperature Toff1Enter described the with second refrigeration compartment
Two turn-on temperature Ton2In either case the step of occurring after further include：
It switches to and freezes to second refrigeration compartment；
Gone up naturally to the first turn-on temperature T with working as first refrigeration compartmenton1When, second refrigeration compartment
Into the second shutoff temperature Toff2For target, the second target operating frequency F of the compressor is calculateda2；
The compressor is controlled with the second target operating frequency Fa2It runs and freezes to second refrigeration compartment, until institute
It states the second refrigeration compartment and enters the second shutoff temperature Toff2Enter first turn-on temperature with first refrigeration compartment
Ton1In either case occur.
Preferably, in the first temperature T for obtaining first refrigeration compartment1With the second of second refrigeration compartment
Temperature T2, and judge the first temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, first shutdown
Temperature Toff1And the second temperature T2With the second turn-on temperature T of preset second refrigeration compartmenton2, second shutdown
Temperature Toff2Between magnitude relationship the step of after, the frequency conversion refrigerator refrigeration control method further includes：
Work as T1＞ Ton1, and T2＜ Ton2When, the compressor is controlled with maximum frequency of operation FmaxOperation, and to described first
Refrigeration compartment is freezed, and first refrigeration compartment is freezed to the first turn-on temperature；
Work as T1＜ Ton1, and T2＞ Ton2When, the compressor is controlled with maximum frequency of operation FmaxOperation, and to described second
Refrigeration compartment is freezed, and second refrigeration compartment is freezed to the second turn-on temperature；
Work as T2＞ Ton2, and T1＞ Ton1When, the compressor is controlled with maximum frequency of operation FmaxOperation and to described first
Refrigeration compartment and second refrigeration compartment carry out alternately switching refrigeration, until first refrigeration compartment enters the first booting temperature
Spend Ton1Under and second refrigeration compartment enter the second turn-on temperature Ton2Under.
In addition, to achieve the above object, the present invention also provides a kind of frequency conversion refrigerator refrigeration control device, the frequency conversion refrigerators
Including the first refrigeration compartment and the second refrigeration compartment, the frequency conversion refrigerator refrigeration control device includes：
Acquisition module, the first temperature T for obtaining first refrigeration compartment1With the second of second refrigeration compartment
Temperature T2, and for judging the first temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, first
Shutoff temperature Toff1And the second temperature T2With the second turn-on temperature T of preset second refrigeration compartmenton2, second
Shutoff temperature Toff2Between magnitude relationship；
Computing module, in Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, with work as second refrigeration compartment by
The second temperature T2Naturally go up to the second turn-on temperature Ton2When, first refrigeration compartment is by the first temperature T1
Into the first shutoff temperature Toff1For target, the first object running frequency F of compressor is calculateda1；
Control module, for controlling the compressor with first object running frequency Fa1Operation and between it is described first refrigeration
Room is freezed, until first refrigeration compartment enters the first shutoff temperature Toff1Described in second refrigeration compartment entrance
Second turn-on temperature Ton2In either case occur.
Preferably, the computing module specifically includes：
First computing unit, for according to the second temperature T2With the second turn-on temperature Ton2It calculates described in obtaining
Second refrigeration compartment is by the second temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tn；
Second computing unit, for being risen again time t according to the expectionn, the first temperature T1With the first shutdown temperature
Spend Toff1Calculate the expection cooling rate S for obtaining first refrigeration compartmentn；
Third computing unit, for according to the expected cooling rate SnCalculate the first object fortune for obtaining the compressor
Line frequency Fa1。
Preferably, the acquisition module is additionally operable to obtain second refrigeration compartment from the second temperature T2Go up minimum
Rise again the second compartment temperature T after time t2', and the environment temperature for obtaining the indoor environment residing for the frequency conversion refrigerator
Ta；
Second refrigeration compartment is obtained by the second temperature T for calculating2Go up to the second turn-on temperature Ton2
Expection rise again time tnFormula be：tn=(T2-Ton2)/(T2-T2’)*t；
For calculating the expection cooling rate S for obtaining first refrigeration compartmentnFormula be：
Sn=(T1-Toff1)/tn；
For calculating the first object running frequency F for obtaining the compressora1Formula be：
Fa1=Fref+(Ta-Tref)*α2；
Wherein TrefFor with TaThe highest reference ambient temperature of the degree of correlation, FrefIt is the preset frequency conversion refrigerator in TrefUnder
Reference operation frequency, α=[(Ta- Tref)/tn- Sn]/tn 2。
Preferably, the control module is additionally operable to controlling the compressor with first object running frequency Fa1Operation and it is right
The first refrigeration compartment refrigeration, until first refrigeration compartment enters the first shutoff temperature Toff1With second system
Cold compartment enters the second turn-on temperature Ton2In either case occur after, switch to the second refrigeration compartment system
It is cold；
The computing module is additionally operable to after the control module switches to and freezes to second refrigeration compartment, to work as
First refrigeration compartment is gone up naturally to the first turn-on temperature Ton1When, second refrigeration compartment enters described second
Shutoff temperature Toff2For target, the second target operating frequency F of the compressor is calculateda2；
The control module is additionally operable to control the compressor with the second target operating frequency Fa2Operation and to described second
Refrigeration compartment is freezed, until second refrigeration compartment enters the second shutoff temperature Toff2With first refrigeration compartment into
Enter the first turn-on temperature Ton1In either case occur.
Preferably, the control module is additionally operable to work as T1＞ Ton1, and T2＜ Ton2When, it controls the compressor and is transported with maximum
Line frequency FmaxOperation, and freeze to first refrigeration compartment, first refrigeration compartment is freezed to the first turn-on temperature
Under；And for working as T1＜ Ton1, and T2＞ Ton2When, the compressor is controlled with maximum frequency of operation FmaxOperation, and to described
Second refrigeration compartment is freezed, and second refrigeration compartment is freezed to the second turn-on temperature；And for working as T2＞
Ton2, and T1＞ Ton1When, the compressor is controlled with maximum frequency of operation FmaxOperation and to first refrigeration compartment and described
Second refrigeration compartment carries out alternately switching refrigeration, until first refrigeration compartment enters the first turn-on temperature Ton1Under, and
Second refrigeration compartment enters the second turn-on temperature Ton2Under.
In addition, to achieve the above object, the present invention also provides a kind of frequency conversion refrigerators, including frequency conversion refrigerator refrigeration control
Device processed.
Frequency conversion refrigerator refrigeration control method provided by the present invention passes through to work as the second refrigeration compartment by second temperature T2From
So go up to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target,
Calculate the first object running frequency F for obtaining compressora1, and compressor is controlled with first object running frequency Fa1Operation and it is right
First refrigeration compartment is freezed, until the first refrigeration compartment enters the first shutoff temperature Toff1It is opened into second with the second refrigeration compartment
Machine temperature Ton2In either case occur, in this way, on the one hand during the frequency conversion refrigerator normal operation, can keep this two
A respective real time temperature of refrigeration chamber is located in corresponding flat-temperature zone, to meet the use demand of user；It is another
Aspect can keep compressor with lower running frequency is run and is dropped to greatest extent during the frequency conversion refrigerator normal operation
The start-stop frequency of low compressor, extend compressor to the caused abrasion of effectively reduction high frequent startup uses the longevity
Life, and effectively reduce the noise caused by high frequent starts.
Description of the drawings
Fig. 1 is the flow diagram of one embodiment of frequency conversion refrigerator refrigeration control method of the present invention；
Fig. 2 is the refinement flow diagram of step S30 in Fig. 1；
Fig. 3 is the refinement flow diagram of step S31 in Fig. 2；
Fig. 4 is the flow diagram of another embodiment of frequency conversion refrigerator refrigeration control method of the present invention；
Fig. 5 is the high-level schematic functional block diagram of one embodiment of frequency conversion refrigerator refrigeration control device of the present invention；
Fig. 6 is the subdivision high-level schematic functional block diagram of computing module in Fig. 5.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of frequency conversion refrigerator refrigeration control method.
In the present invention, the running frequency of the compressor of the frequency conversion refrigerator is adjustable, and the running frequency of compressor is higher, the change
The refrigerating efficiency of frequency refrigerator refrigeration system is higher.The frequency conversion refrigerator has the first refrigeration compartment and the second refrigeration compartment, and (this two
A refrigeration compartment can be freezing chamber and refrigerating chamber), and be designed in each refrigeration compartment for monitoring corresponding refrigeration in real time
The temperature sensor of indoor real time temperature.It is right according to the temperature needs of corresponding refrigeration compartment institute stored goods in the present embodiment
Each refrigeration compartment is equipped with corresponding target temperature regime, which is corresponding turn-on temperature, under
It is limited to corresponding shutoff temperature, specifically, when the temperature of corresponding refrigeration compartment is higher than corresponding turn-on temperature, compressor is needed to right
Refrigeration compartment is answered to freeze, and when the temperature of corresponding refrigeration compartment is less than corresponding shutoff temperature, compressor is not necessarily to correspondence
Refrigeration compartment is freezed；Since the function of each refrigeration compartment may be inconsistent, therefore the corresponding booting temperature of different refrigeration compartments
Degree is typically inconsistent, and the correspondence shutoff temperature of different refrigeration compartments is generally also inconsistent；For example, normally, freezing
The turn-on temperature of room is less than the turn-on temperature of refrigerating chamber, and, the shutoff temperature of the shutoff temperature of freezing chamber also below refrigerating chamber.
In the present invention, the refrigeration compartment of the compressor of the frequency conversion refrigerator in synchronization is only two refrigeration compartments
Cold is provided.The control law of the frequency conversion refrigerator refrigeration control method for ease of description, to the real time temperature of each refrigeration compartment
Carry out temperature range definition：When the real time temperature of a refrigeration chamber is located between corresponding turn-on temperature and corresponding shutoff temperature
When, it defines the refrigeration compartment and is in flat-temperature zone, user needs the real time temperature of the refrigeration compartment to be maintained in the flat-temperature zone；When one
When the real time temperature of refrigeration chamber is less than corresponding shutoff temperature, defines the refrigeration compartment and be in heating zone, user needs the system
The real time temperature of cold compartment is warming up to flat-temperature zone；And when the real time temperature of a refrigeration chamber is more than corresponding turn-on temperature, it is fixed
The adopted refrigeration compartment is in cooling area, and user needs the real time temperature of the refrigeration compartment to be cooled to flat-temperature zone.
Referring to figs. 1 to Fig. 3, Fig. 1 is the flow diagram of one embodiment of frequency conversion refrigerator refrigeration control method of the present invention；Fig. 2
For the refinement flow diagram of step S30 in Fig. 1；Fig. 3 is the refinement flow diagram of step S31 in Fig. 2.
In one embodiment, which includes：
Step S10 obtains the first temperature T of the first refrigeration compartment1With the second temperature T of the second refrigeration compartment2；
Step S20 judges the first temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, first shutdown
Temperature Toff1And second temperature T2With the second turn-on temperature T of preset second refrigeration compartmenton2, the second shutoff temperature Toff2
Between magnitude relationship；
Step S30 works as Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, with when the second refrigeration compartment is by second temperature T2From
So go up to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target,
The first refrigeration compartment of the running frequency pair refrigeration for adjusting compressor, until the first refrigeration compartment enters the first shutoff temperature Toff1With
Second refrigeration compartment enters the second turn-on temperature Ton2In either case occur.
In the present embodiment, after the frequency conversion refrigerator is opened, control system can be from the temperature sensing in each refrigeration compartment
Device obtains the real time temperature of corresponding refrigeration compartment, and the real time temperature of corresponding refrigeration compartment is opened with the correspondence of corresponding refrigeration compartment
Machine temperature and corresponding shutoff temperature carry out size comparison.Work as Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, i.e., when the first system
When cold compartment and the second refrigeration compartment are in corresponding flat-temperature zone, with when the second refrigeration compartment is by second temperature T2It is natural
Go up to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target, adjust
The first refrigeration compartment of running frequency pair of whole compressor is freezed, until the first refrigeration compartment enters the first shutoff temperature Toff1With
Two refrigeration compartments enter the second turn-on temperature Ton2In either case occur.
In the present embodiment, specifically, step S30 includes：
Step S31, with when the second refrigeration compartment is by second temperature T2Naturally go up to the second turn-on temperature Ton2When, first
Refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target, the first object running frequency of compressor is calculated
Fa1；
Step S32, control compressor is with first object running frequency Fa1It runs and freezes to the first refrigeration compartment, until the
One refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with the second refrigeration compartmenton2In either case go out
It is existing.
In the present embodiment, further, step S31 includes：
Step S311, according to second temperature T2With the second turn-on temperature Ton2It calculates and obtains the second refrigeration compartment by the second temperature
Spend T2Go up to the second turn-on temperature Ton2Expection rise again time tn；
Step S312, according to the expected time t that rises againn, the first temperature T1With the first shutoff temperature Toff1It calculates and obtains the first system
The expection cooling rate S of cold compartmentn；Preferably, it is used to calculate the expection cooling rate S for obtaining the first refrigeration compartmentnFormula
For：Sn=(T1-Toff1)/tn；
Step S313, according to expected cooling rate SnCalculate the first object running frequency F for obtaining compressora1。
In the present embodiment, to realize and be risen again naturally to the second turn-on temperature T in the second refrigeration compartmenton2Time in, by
One refrigeration compartment is freezed to the first shutoff temperature Toff1, that is, need the running frequency by real-time control compressor so that by
One refrigeration compartment is freezed to the first shutoff temperature Toff1Expeced time equal to the second refrigeration compartment rise again naturally to second booting
Temperature Ton2(t expeced timen), key is it needs to be determined that the first object operation frequency of its compressor in this process
Rate Fa1, the expection cooling rate S for the first refrigeration compartment that the present embodiment is obtained by calculatingnWhen determining current to further calculate
Carve corresponding compressor first object running frequency Fa1。
In the present embodiment, the control system of the frequency conversion refrigerator passes through to work as the second refrigeration compartment by second temperature T2Naturally it returns
Rise to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target, calculate
Obtain the first object running frequency F of compressora1, and compressor is controlled with first object running frequency Fa1Operation and to first
Refrigeration compartment is freezed, until the first refrigeration compartment enters the first shutoff temperature Toff1Enter the second booting temperature with the second refrigeration compartment
Spend Ton2In either case occur, in this way, on the one hand during the frequency conversion refrigerator normal operation, can keep this two system
Cold indoor respective real time temperature is located in corresponding flat-temperature zone, to meet the use demand of user；On the other hand
During the frequency conversion refrigerator normal operation, compressor can be kept so that lower running frequency is run and reduces pressure to greatest extent
The start-stop frequency of contracting machine extends the service life of compressor to the caused abrasion of effectively reduction high frequent startup,
And it effectively reduces the noise caused by high frequent starts and promotes user experience.
In the present embodiment, further, before step S3111, step S31 further includes：
Step S314 obtains second refrigeration compartment from the second temperature T2Minimum of ging up rise again after time t the
Two compartment temperature T2’。
In the present embodiment, the minimum time t that rises again refers to rising again after time t by the minimum, and corresponding refrigeration compartment exists
Naturally in the case of rising again, temperature sensor can detect the variation of corresponding refrigeration compartment real time temperature, and (normally, minimum is risen again
Time t is an empirical value, as long as and the correspondence refrigeration compartment of the frequency conversion refrigerator volume and target temperature regime determine after,
Limited number of time experiment can be passed through to determine), certainly, normally, the temperature value that corresponding refrigeration compartment is gone up in the minimum time t that rises again
Much smaller than the temperature value to go up required for corresponding refrigeration compartment, in other words, for the temperature gone up required for corresponding refrigeration compartment
For angle value, the temperature value that corresponding refrigeration compartment is gone up in the minimum time t that rises again is negligible, in this way, with
The second refrigeration compartment is obtained by second temperature T in calculating2Go up to the second turn-on temperature Ton2Expection rise again time tnFormula
For：tn=(T2-Ton2)/(T2-T2’)*t.It certainly, in other embodiments of the invention, can also be by first measuring the second system
The cold compartment nature rise preset temperature value required time, then estimate and obtain the second refrigeration compartment by second temperature T2Go up extremely
Second turn-on temperature Ton2Expection rise again time tn。
In the present embodiment, further, after step S312, before step S313, step S31 further includes：
Step S315 obtains the environment temperature T of the indoor environment residing for the frequency conversion refrigeratora。
In the present embodiment, for the refrigeration unit of the frequency conversion refrigerator, indoor environment residing for the frequency conversion refrigerator
Environment temperature TaWhen different, compressor has different refrigerating efficiencies under identical running frequency.In the present embodiment, for this
Frequency conversion refrigerator chooses several reference ambient temperatures, and determines the frequency conversion refrigerator in each reference atmosphere temperature by way of experiment
Reference operation frequency under degree is (for example, during the test, the indoor environment temperature residing for the frequency conversion refrigerator is stablized a certain
Reference ambient temperature, by carrying out frequency control to compressor, until the compressor is under a certain running frequency, the frequency conversion refrigerator
Each refrigeration compartment be kept at corresponding flat-temperature zone, then the running frequency be the reference ambient temperature under benchmark operation
Frequency), and identified reference operation frequency is preset in the frequency conversion refrigerator；Normally, several reference ambient temperatures
It it is 5 DEG C, 10 DEG C, 16 DEG C, 25 DEG C, 32 DEG C, 38 DEG C, 43 DEG C, corresponding reference operation frequency is F5、F10、F16、F25、
F32、F38、F43.In the present embodiment, the target operating frequency F of compressora=Fref+(Ta-Tref)*α2, wherein TrefFor with TaIt is related
Spend highest reference ambient temperature, FrefIt is the preset frequency conversion refrigerator in TrefUnder reference operation frequency.Obviously front is carried
The T arrivedrefFor with TaThe highest reference ambient temperature of the degree of correlation specifically refers to：The ring of indoor environment residing for the frequency conversion refrigerator
Border temperature TaBy chance it is equal to a certain reference ambient temperature TrefWhen, there is Fref=Fa, at this point, the target operating frequency F of compressoraDirectly
It is connected in corresponding reference operation frequency Fref；And work as environment temperature TaNot equal to a certain reference ambient temperature TrefWhen, it selects in number
Closest to environment temperature T in valueaThat reference ambient temperature TrefAs reference ambient temperature Tref, i.e., when the frequency conversion refrigerator
The environment temperature T of residing indoor environmentaIt falls in a certain reference ambient temperature TrefSurrounding when, need to pass through offset at this time
Δ F=(Ta-Tref)*α2To correct the target operating frequency F of compressora, wherein α is that frequency conversion changes acceleration, and α >=0, specifically
Ground, α=[(Ta- Tref)/tn- Sn]/tn 2, wherein tnIt is risen again naturally to the second turn-on temperature T for the second refrigeration compartmenton2
Expection rise again the time, SnFreeze to the first shutoff temperature T for the first refrigeration compartmentoff1Expection cooling rate.This implementation
In example, when compartment is all in flat-temperature zone between the first refrigeration compartment and second, and the mistake of the first refrigeration compartment of compressor pair refrigeration
Cheng Zhong, compressor can maintain first object running frequency Fa1Operation is until the first refrigeration compartment enters the first shutoff temperature Toff1With
Second refrigeration compartment enters the second turn-on temperature Ton2In either case occur.
In addition, due to for determining compressor, running frequency cannot be reduced ad infinitum and ad infinitum be increased, that is, be compressed
Machine has minimum operating frequency FminWith maximum frequency of operation Fmax, therefore in the present embodiment, specifically, when the compression for calculating gained
Machine target operating frequency FaLess than the minimum operating frequency F of compressorminWhen, control compressor is with minimum operating frequency FminFortune
Row；And as the compressor target operating frequency F for calculating gainedaMore than the maximum frequency of operation F of compressormaxWhen, control compressor
With maximum frequency of operation FmaxOperation reduces the start-stop frequency of compressor to realize the Homes Using TV for improving compressor to the full extent
Rate.
It is the flow diagram of another embodiment of frequency conversion refrigerator refrigeration control method of the present invention with reference to Fig. 4, Fig. 4.
On the basis of previous embodiment, further, the control method of the air-conditioner outdoor unit motor step S30 it
Afterwards, further include：
Step S40 is switched to and is freezed to the second refrigeration compartment, and to go up naturally to the first booting when the first refrigeration compartment
Temperature Ton1When, the second refrigeration compartment enters the second shutoff temperature Toff2For target, the running frequency of compressor is adjusted, until the
Two refrigeration compartments enter the second shutoff temperature Toff2Enter the first turn-on temperature T with the first refrigeration compartmenton1In either case go out
It is existing.
In the present embodiment, specifically, step S40 includes：
Step S41 is switched to and is freezed to second refrigeration compartment；
Step S42 is gone up naturally with working as first refrigeration compartment to the first turn-on temperature Ton1When, described second
Refrigeration compartment enters the second shutoff temperature Toff2For target, the second target operating frequency F of the compressor is calculateda2；
Step S43 controls the compressor with the second target operating frequency Fa2Operation and to the second refrigeration compartment system
It is cold, until second refrigeration compartment enters the second shutoff temperature Toff2Enter described first with first refrigeration compartment
Turn-on temperature Ton1In either case occur.
In the present embodiment, in compressor with first object running frequency Fa1The process for running and freezing to the first refrigeration compartment
In, when the first refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with the second refrigeration compartmenton2In appoint
When one situation occurs, the control system of the frequency conversion refrigerator, which can switch to compressor, freezes to the second refrigeration compartment, and with when the
One refrigeration compartment is gone up naturally to the first turn-on temperature Ton1When, the second refrigeration compartment enters the second shutoff temperature Toff2For target,
The second target operating frequency F of compressor is calculated in real timea2, so that its control system controls compressor with second object run frequency
Rate Fa2It runs and freezes to the second refrigeration compartment, until the second refrigeration compartment enters the first shutoff temperature Toff2And between first freezes
Room enters the first turn-on temperature Ton1In either case occur；During this, the first refrigeration compartment is out of nature state of rising again
's.In the process, specifically, the environment temperature T of the indoor environment residing for the frequency conversion refrigerator is first obtaineda0, the first refrigeration compartment
Real-time temperature T10, the second refrigeration compartment real-time temperature T20And first refrigeration compartment from temperature T10When rise minimum is risen again
Between t0The first compartment temperature T afterwards1', and pass through formula tn0=(T10-Ton1)/(T10-T1’)*t0It calculates between obtaining the first refrigeration
Room is from temperature T10Naturally it rises again to the first turn-on temperature Ton1Expection rise again time tn0；Pass through formula S againn0=(T20-Toff2)/
tn0It calculates and obtains the second refrigeration compartment by temperature T20Freeze to the second shutoff temperature Toff2Expection cooling rate Sn0；Finally lead to
Cross formula Fa2=Fref0+(Ta0-Tref0)*α0 2(α0=[(Ta0- Tref0)/tn0- Sn0]/tn0 2) calculate the compressor obtained at this time
The second target operating frequency Fa2。
Further, the control method of the air-conditioner outdoor unit motor further includes after step S30：
Step S50 is switched to and is freezed to the first refrigeration compartment, and to go up naturally to the second booting when the second refrigeration compartment
Temperature Ton2When, the first refrigeration compartment enters the first shutoff temperature Toff1For target, the running frequency of compressor is adjusted, until the
One refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with the second refrigeration compartmenton2In either case go out
It is existing.
In the present embodiment, the above step that reruns S40 and step S50, so that compressor is persistently transported with low running frequency
Row, in other words, the control system of the frequency conversion refrigerator make the first refrigeration compartment and second by the way of alternately switching refrigeration
Cold compartment freezes, and during entire alternately switching refrigeration, control system calculates the object run frequency of compressor in real time
Rate Fa, and calculating process is with when a refrigeration chamber real time temperature in two refrigeration compartments enters corresponding turn-on temperature
When another refrigeration chamber real time temperature to enter corresponding shutoff temperature be target, in this way, on the one hand normal in the frequency conversion refrigerator
During operation, two respective real time temperatures of refrigeration chamber can be kept to be located in corresponding flat-temperature zone, to
Meet the use demand of user；On the other hand during the frequency conversion refrigerator normal operation, compressor can be kept with lower
Running frequency runs and reduces to greatest extent the start-stop frequency of compressor, to effectively reduce caused by high frequent starts
The service life of compressor is worn and extended, and effectively reduces the noise caused by high frequent starts and promotes user's use
Experience.
It is emphasized that in other embodiments of the invention, which can also have third refrigeration compartment (ratio
Such as temperature-changing chamber), the 4th refrigeration compartment, i.e. the frequency conversion refrigerator can have there are three above refrigeration compartment, similarly, at this three
It, can be by carrying out alternately switching refrigeration to different (three or more) refrigeration compartments when above refrigeration compartment is in flat-temperature zone
Mode freezes to three or more the refrigeration compartments, and by adjusting the running frequency of compressor, to ensure any of which system
When cold indoor real time temperature enters corresponding turn-on temperature or corresponding shutoff temperature, remaining refrigeration chamber real time temperature is right
It answers between turn-on temperature and corresponding shutoff temperature, so that the compressor in the case where different refrigeration compartments are maintained at flat-temperature zone
Compressor can be extended with lower running frequency continuous service to effectively reduce the abrasion caused by high frequent starts
Service life, and effectively reduce high frequent start caused by noise and promote user experience.
In the present embodiment, further, the control method of the air-conditioner outdoor unit motor further includes after step S20：
Step S60, works as T1＞ Ton1And/or T2＞ Ton2When, control compressor is with maximum frequency of operation FmaxOperation, and it is right
First refrigeration compartment and/or the second refrigeration compartment refrigeration, the first refrigeration compartment and/or the second refrigeration compartment are freezed to correspondence
Refrigeration compartment correspondence turn-on temperature under；And after executing step S60, re-execute step S10.
In the present embodiment, as the first temperature T1More than the first turn-on temperature Ton1, and the second temperature T2
Less than the second turn-on temperature Ton2When, i.e., when the first refrigeration compartment of the frequency conversion refrigerator is in cooling area, control system
Compressor will be controlled with maximum frequency of operation FmaxOperation, and to the first refrigeration compartment freeze, by the first refrigeration compartment freeze to
First turn-on temperature Ton1Under, i.e., the first refrigeration compartment is freezed to flat-temperature zone；Alternatively, working as the second temperature T2More than institute
State the second turn-on temperature Ton2, and the first temperature T1Less than the first turn-on temperature Ton1When, i.e., when the frequency conversion refrigerator
When second refrigeration compartment is in cooling area, control system will control compressor with maximum frequency of operation FmaxOperation, and to second
Refrigeration compartment is freezed, and the second refrigeration compartment is freezed to the second turn-on temperature Ton2Under, i.e., by the second refrigeration compartment freeze to
Flat-temperature zone.Particularly, as the first temperature T1More than the first turn-on temperature Ton1, and the second temperature T2More than described
Second turn-on temperature Ton2When, i.e., when the first refrigeration compartment of the frequency conversion refrigerator and the second refrigeration compartment are all in cooling area,
Control system will control compressor with maximum frequency of operation FmaxOperation, and made in turn to first in a manner of alternately switching refrigeration
Cold compartment and the second refrigeration compartment refrigeration, the first refrigeration compartment and the second refrigeration compartment are freezed close to synchronization to right
Under the correspondence turn-on temperature for the refrigeration compartment answered, this process is specific as follows：First, each refrigeration compartment of the frequency conversion refrigerator is determined
Freeze priority, simply, in the case where compressor is not run, the correspondence for obtaining each refrigeration compartment is risen again speed V, with first
For refrigeration compartment, the Current Temperatures T of the first refrigeration compartment is obtained01, rise again time t by minimum00Obtain the first refrigeration again afterwards
The temperature T of compartment01', then the first of the first refrigeration compartment rises again speed as V1=(T01’-T01)/t00, the bigger system of speed of rising again
Cold priority is higher；Then the frequency conversion refrigerator is made according to the refrigeration priority orders of each refrigeration compartment and the minimum of each refrigeration compartment
Cool time is started to work, and is calculated each refrigeration compartment and freezed to the cooling time under corresponding turn-on temperature, according to each refrigeration
Compartment freezes, and to the cooling time under corresponding turn-on temperature, the first refrigeration compartment of distribution and the second refrigeration compartment are respective in real time
Cooling time in turn；Then, according still further to above-mentioned, respectively cooling time alternately freeze by the first refrigeration compartment of switching and second in turn
Compartment freezes.
In the present embodiment, when the first refrigeration compartment of the frequency conversion refrigerator and/or the second refrigeration compartment are in cooling area,
Control system controls compressor with maximum frequency of operation FmaxOperation, so that the first refrigeration compartment and/or the second refrigeration compartment can be fast
Speed drops to corresponding flat-temperature zone and meets the storage needs of user.
In the present embodiment, further, the control method of the air-conditioner outdoor unit motor further includes after step S20：
Step S70, works as T1＜ Toff1And/or T2＜ Toff2When, compressor stops making the first refrigeration compartment and/or second
Cold compartment refrigeration, so that the corresponding temperature of the first refrigeration compartment and/or the second refrigeration compartment is risen again naturally to corresponding shutoff temperature
On；And after executing step S70, re-execute step S10.
In the present embodiment, as the first temperature T1Less than the first shutoff temperature Toff1, and the second refrigeration compartment position
When flat-temperature zone, control system will control compressor and stop freezing to the first refrigeration compartment, so that the of the first refrigeration compartment
One temperature is risen again naturally to the first shutoff temperature Toff1On, that is, allow the first refrigeration compartment refrigeration nature to be risen again to flat-temperature zone；Or
Person, the second temperature T2Less than the second shutoff temperature Toff2, and when the first refrigeration compartment is located at flat-temperature zone, control system
Control compressor is stopped freezing to the second refrigeration compartment by system, so that the second temperature of the second refrigeration compartment is risen again naturally to second
Shutoff temperature Toff2On, i.e., the second refrigeration compartment is freezed to flat-temperature zone.Particularly, as the first temperature T1Less than described
First shutoff temperature Toff1, and the second temperature T2Less than the second shutoff temperature Toff2When, i.e. when the frequency conversion refrigerator
When one refrigeration compartment and the second refrigeration compartment are all in heating zone, control system will control compressor shutdown, to save the change
The energy consumption of frequency refrigerator.
The present invention further provides a kind of frequency conversion refrigerator refrigeration control devices.
It is the high-level schematic functional block diagram of one embodiment of frequency conversion refrigerator refrigeration control device of the present invention with reference to Fig. 4 and Fig. 5, Fig. 4；
Fig. 5 is the subdivision high-level schematic functional block diagram of computing module in Fig. 4.
In the present embodiment, which includes：
Acquisition module 10, the first temperature T for obtaining the first refrigeration compartment1With the second temperature T of the second refrigeration compartment2,
And for judging the first temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, the first shutoff temperature Toff1, with
And second temperature T2With the second turn-on temperature T of preset second refrigeration compartmenton2, the second shutoff temperature Toff2Between size close
System；
Computing module 20, in Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, with when the second refrigeration compartment is by the
Two temperature T2Naturally go up to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature
Toff1For target, the first object running frequency F of compressor is calculateda1；
Control module 30, for controlling compressor with first object running frequency Fa1Operation and to the first refrigeration compartment system
It is cold, until the first refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with the second refrigeration compartmenton2In
Either case occurs.
In the present embodiment, after the frequency conversion refrigerator is opened, acquisition module 10 can be from the temperature sensing in each refrigeration compartment
Device obtains the real time temperature of corresponding refrigeration compartment, and the real time temperature of corresponding refrigeration compartment is opened with the correspondence of corresponding refrigeration compartment
Machine temperature and corresponding shutoff temperature carry out size comparison.Work as Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, i.e., when the first system
When cold compartment and the second refrigeration compartment are in corresponding flat-temperature zone, computing module 20 is with when the second refrigeration compartment is by second
Temperature T2Naturally go up to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1
For target, the first object running frequency F of compressor is calculateda1, control module 30 then control compressor with first object run frequency
Rate Fa1It runs and freezes to the first refrigeration compartment, until the first refrigeration compartment enters the first shutoff temperature Toff1And between second freezes
Room enters the second turn-on temperature Ton2In either case occur.
In the present embodiment, further, computing module 20 specifically includes：
First computing unit 21, for according to second temperature T2With the second turn-on temperature Ton2It calculates between obtaining the second refrigeration
Room is by second temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tn；
Second computing unit 22, for according to the expected time t that rises againn, the first temperature T1With the first shutoff temperature Toff1It calculates
Obtain the expection cooling rate S of the first refrigeration compartmentn；Preferably, it is used to calculate the expected cooling speed for obtaining the first refrigeration compartment
Spend SnFormula be：Sn=(T1-Toff1)/tn；
Third computing unit 23, for according to expected cooling rate SnCalculate the first object running frequency for obtaining compressor
Fa1。
In the present embodiment, to realize and be risen again naturally to the second turn-on temperature T in the second refrigeration compartmenton2Time in, by
One refrigeration compartment is freezed to the first shutoff temperature Toff1, that is, need the operation frequency by 30 real-time control compressor of control module
Rate so that the first refrigeration compartment is freezed to the first shutoff temperature Toff1Expeced time rise again naturally equal to the second refrigeration compartment
To the second turn-on temperature Ton2(t expeced timen), key be it needs to be determined that its compressor in this process first
Target operating frequency Fa1, the expection cooling rate S for the first refrigeration compartment that the present embodiment is obtained by calculatingnTo further calculate
Determine the compressor first object running frequency F corresponding to current timea1。
In the present embodiment, the computing module 20 of the frequency conversion refrigerator passes through to work as the second refrigeration compartment by second temperature T2It is natural
Go up to the second turn-on temperature Ton2When, the first refrigeration compartment is by the first temperature T1Into the first shutoff temperature Toff1For target, meter
Calculate the first object running frequency F for obtaining compressora1, and compressor is controlled with first object running frequency by control module 30
Fa1It runs and freezes to the first refrigeration compartment, until the first refrigeration compartment enters the first shutoff temperature Toff1With the second refrigeration compartment
Into the second turn-on temperature Ton2In either case occur, in this way, on the one hand during the frequency conversion refrigerator normal operation,
Two respective real time temperatures of refrigeration chamber can be kept to be located in corresponding flat-temperature zone, to meet the use of user
Demand；On the other hand during the frequency conversion refrigerator normal operation, compressor can be kept so that lower running frequency is run and
The start-stop frequency for reducing compressor to greatest extent extends compression to effectively reduce the abrasion caused by high frequent starts
The service life of machine, and effectively reduce the noise caused by high frequent starts and promote user experience.
In the present embodiment, further, acquisition module 10 is additionally operable to obtain the second refrigeration compartment from second temperature T2It returns
Rise the second compartment temperature T after the minimum time t that rises again2’。
In the present embodiment, the minimum time t that rises again refers to rising again after time t by the minimum, and corresponding refrigeration compartment exists
Naturally in the case of rising again, temperature sensor can detect the variation of corresponding refrigeration compartment real time temperature, and (normally, minimum is risen again
Time t is an empirical value, as long as and the correspondence refrigeration compartment of the frequency conversion refrigerator volume and target temperature regime determine after,
Limited number of time experiment can be passed through to determine), certainly, normally, the temperature value that corresponding refrigeration compartment is gone up in the minimum time t that rises again
Much smaller than the temperature value to go up required for corresponding refrigeration compartment, in other words, for the temperature gone up required for corresponding refrigeration compartment
For angle value, the temperature value that corresponding refrigeration compartment is gone up in the minimum time t that rises again is negligible, in this way, with
The second refrigeration compartment is obtained by second temperature T in calculating2Go up to the second turn-on temperature Ton2Expection rise again time tnFormula
For：tn=(T2-Ton2)/(T2-T2’)*t.It certainly, in other embodiments of the invention, can also be by elder generation by acquisition module
10 obtained for the second refrigeration compartment nature rise preset temperature value required times, then obtained the by the estimation of the first computing unit 21
Two refrigeration compartments are by second temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tn。
In the present embodiment, further, acquisition module 10 is additionally operable to obtain the indoor environment residing for the frequency conversion refrigerator
Environment temperature Ta。
In the present embodiment, for the refrigeration unit of the frequency conversion refrigerator, indoor environment residing for the frequency conversion refrigerator
Environment temperature TaWhen different, compressor has different refrigerating efficiencies under identical running frequency.In the present embodiment, for this
Frequency conversion refrigerator chooses several reference ambient temperatures, and determines the frequency conversion refrigerator in each reference atmosphere temperature by way of experiment
Reference operation frequency under degree is (for example, during the test, the indoor environment temperature residing for the frequency conversion refrigerator is stablized a certain
Reference ambient temperature, by carrying out frequency control to compressor, until the compressor is under a certain running frequency, the frequency conversion refrigerator
Each refrigeration compartment be kept at corresponding flat-temperature zone, then the running frequency be the reference ambient temperature under benchmark operation
Frequency), and identified reference operation frequency is preset in the frequency conversion refrigerator；Normally, several reference ambient temperatures
It it is 5 DEG C, 10 DEG C, 16 DEG C, 25 DEG C, 32 DEG C, 38 DEG C, 43 DEG C, corresponding reference operation frequency is F5、F10、F16、F25、
F32、F38、F43.In the present embodiment, the target operating frequency F of compressora=Fref+(Ta-Tref)*α2, wherein TrefFor with TaIt is related
Spend highest reference ambient temperature, FrefIt is the preset frequency conversion refrigerator in TrefUnder reference operation frequency.Obviously front is carried
The T arrivedrefFor with TaThe highest reference ambient temperature of the degree of correlation specifically refers to：The ring of indoor environment residing for the frequency conversion refrigerator
Border temperature TaBy chance it is equal to a certain reference ambient temperature TrefWhen, there is Fref=Fa, at this point, the target operating frequency F of compressoraDirectly
It is connected in corresponding reference operation frequency Fref；And work as environment temperature TaNot equal to a certain reference ambient temperature TrefWhen, it selects in number
Closest to environment temperature T in valueaThat reference ambient temperature TrefAs reference ambient temperature Tref, i.e., when the frequency conversion refrigerator
The environment temperature T of residing indoor environmentaIt falls in a certain reference ambient temperature TrefSurrounding when, need to pass through offset at this time
Δ F=(Ta-Tref)*α2To correct the target operating frequency F of compressora, wherein α is that frequency conversion changes acceleration, and α >=0, specifically
Ground, α=[(Ta- Tref)/tn- Sn]/tn 2, wherein tnIt is risen again naturally to the second turn-on temperature T for the second refrigeration compartmenton2
Expection rise again the time, SnFreeze to the first shutoff temperature T for the first refrigeration compartmentoff1Expection cooling rate.This implementation
In example, when compartment is all in flat-temperature zone between the first refrigeration compartment and second, and the mistake of the first refrigeration compartment of compressor pair refrigeration
Cheng Zhong, control module 30 will control compressor and maintain first object running frequency Fa1Operation is until the first refrigeration compartment enters first
Shutoff temperature Toff1Enter the second turn-on temperature T with the second refrigeration compartmenton2In either case occur.
In addition, due to for determining compressor, running frequency cannot be reduced ad infinitum and ad infinitum be increased, that is, be compressed
Machine has minimum operating frequency FminWith maximum frequency of operation Fmax, in the present embodiment, specifically, when computing module 20 calculates institute
The compressor target operating frequency F obtainedaLess than the minimum operating frequency F of compressorminWhen, control module 30 control compressor with
Minimum operating frequency FminOperation；And when computing module 20 calculates the compressor target operating frequency F of gainedaMore than compressor
Maximum frequency of operation FmaxWhen, control module 30 controls compressor with maximum frequency of operation FmaxOperation, to realize to the full extent
The Homes Using TV for improving compressor, reduces the start-stop frequency of compressor.
In the present embodiment, further, control module 30 is additionally operable in control compressor with first object running frequency
Fa1It runs and freezes to the first refrigeration compartment, until the first refrigeration compartment enters the first shutoff temperature Toff1With the second refrigeration compartment
Into the second turn-on temperature Ton2In either case occur after, switch to the second refrigeration compartment freeze；
Computing module 20 is additionally operable to after control module 30 switches to and freezes to the second refrigeration compartment, with when the first refrigeration
Compartment gos up naturally to the first turn-on temperature Ton1When, the second refrigeration compartment enters the second shutoff temperature Toff2For target, pressure is calculated
Second target operating frequency F of contracting machinea2；
Control module 30 is additionally operable to control compressor with the second target operating frequency Fa2Operation and to the second refrigeration compartment system
It is cold, until the second refrigeration compartment enters the second shutoff temperature Toff2Enter the first turn-on temperature T with the first refrigeration compartmenton1In
Either case occurs.
In the present embodiment, in compressor with first object running frequency Fa1The process for running and freezing to the first refrigeration compartment
In, when the first refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with the second refrigeration compartmenton2In appoint
When one situation occurs, the control module 30 of the frequency conversion refrigerator, which can switch to compressor, freezes to the second refrigeration compartment, counts simultaneously
Module 20 is calculated with when the first refrigeration compartment is gone up naturally to the first turn-on temperature Ton1When, the second refrigeration compartment enters the second shutdown
Temperature Toff2For target, the second target operating frequency F of compressor is calculated in real timea2, so that control module 30 control compressor with
Second target operating frequency Fa2It runs and freezes to the second refrigeration compartment, until the second refrigeration compartment enters the first shutoff temperature
Toff2Enter the first turn-on temperature T with the first refrigeration compartmenton1In either case occur；During this, the first refrigeration compartment is
Out of nature state of rising again.In the process, specifically, first acquisition module 10 obtains the indoor environment residing for the frequency conversion refrigerator
Environment temperature Ta0, the first refrigeration compartment real-time temperature T10, the second refrigeration compartment real-time temperature T20And first refrigeration
Compartment is from temperature T10Rise minimum is risen again time t0The first compartment temperature T afterwards1', then computing module 20 passes through formula tn0=
(T10-Ton1)/(T10-T1’)*t0It calculates and obtains the first refrigeration compartment from temperature T10Naturally it rises again to the first turn-on temperature Ton1It is pre-
Phase rises again time tn0；Then computing module 20 passes through formula S againn0=(T20-Toff2)/tn0Calculate obtain the second refrigeration compartment by
Temperature T20Freeze to the second shutoff temperature Toff2Expection cooling rate Sn0；Finally by formula Fa2=Fref0+(Ta0-Tref0)*
α0 2(α0=[(Ta0- Tref0)/tn0- Sn0]/tn0 2) calculate the second target operating frequency F of the compressor obtained at this timea2。
In the present embodiment, when the first refrigeration compartment and the second refrigeration compartment are all in flat-temperature zone, control module 30 is adopted
Freezed with alternately the first refrigeration compartment of mode pair of switching refrigeration and the second refrigeration compartment, the mistake of entire alternately switching refrigeration
Cheng Zhong, computing module 20 calculate the target operating frequency F of compressor in real timea, control module 30 is with the real-time target for calculating acquisition
Running frequency FaThe operation for adjusting compressor, so that the first refrigeration compartment and the second refrigeration compartment all maintain flat-temperature zone, such as
This can keep the respective real time temperature position of two refrigeration chambers on the one hand during the frequency conversion refrigerator normal operation
In in corresponding flat-temperature zone, to meet the use demand of user；On the other hand in the mistake of the frequency conversion refrigerator normal operation
Cheng Zhong can keep compressor with lower running frequency is run and reduces the start-stop frequency of compressor to greatest extent, to effectively
It reduces the abrasion caused by high frequent starts and extends the service life of compressor, and effectively reduce high frequent and start
Caused noise and promote user experience.
It is emphasized that in other embodiments of the invention, which can also have third refrigeration compartment (ratio
Such as temperature-changing chamber), the 4th refrigeration compartment, i.e. the frequency conversion refrigerator can have there are three above refrigeration compartment, similarly, at this three
When above refrigeration compartment is in flat-temperature zone, different (three or more) refrigeration compartments can be replaced by control module 30
The mode of switching refrigeration freezes to three or more the refrigeration compartments, and adjusts the running frequency of compressor, so that wherein
When one refrigeration chamber real time temperature enters corresponding turn-on temperature or corresponding shutoff temperature, remaining refrigeration chamber real time temperature
Between corresponding turn-on temperature and corresponding shutoff temperature, so that being pushed the case where different refrigeration compartments are maintained at flat-temperature zone
Contracting function extends pressure with lower running frequency continuous service, to effectively reduce the abrasion caused by high frequent starts
The service life of contracting machine, and effectively reduce the noise caused by high frequent starts and promote user experience.
In the present embodiment, further, work as T1＞ Ton1And/or T2＞ Ton2When, control module 30 is additionally operable to control pressure
Contracting machine is with maximum frequency of operation FmaxOperation, and freeze to the first refrigeration compartment and/or the second refrigeration compartment, by the first refrigeration
Compartment and/or the second refrigeration compartment are freezed to the correspondence turn-on temperature of corresponding refrigeration compartment.
In the present embodiment, as the first temperature T1More than the first turn-on temperature Ton1, and the second temperature T2It is small
In the second turn-on temperature Ton2When, i.e., when the first refrigeration compartment of the frequency conversion refrigerator is in cooling area, control module 30 will
Compressor is controlled with maximum frequency of operation FmaxOperation, and freeze to the first refrigeration compartment, the first refrigeration compartment is freezed to the
One turn-on temperature Ton1Under, i.e., the first refrigeration compartment is freezed to flat-temperature zone；Alternatively, working as the second temperature T2More than described
Second turn-on temperature Ton2, and the first temperature T1Less than the first turn-on temperature Ton1When, i.e. when the frequency conversion refrigerator
When two refrigeration compartments are in cooling area, control module 30 will control compressor with maximum frequency of operation FmaxOperation, and made to second
Cold compartment refrigeration, the second refrigeration compartment is freezed to the second turn-on temperature Ton2Under, i.e., the second refrigeration compartment is freezed to perseverance
Warm area.Particularly, as the first temperature T1More than the first turn-on temperature Ton1, and the second temperature T2More than described
Two turn-on temperature Ton2When, i.e., when the first refrigeration compartment of the frequency conversion refrigerator and the second refrigeration compartment are all in cooling area, control
Module 30 will control compressor with maximum frequency of operation FmaxOperation, and replace switching refrigeration by freezing handover module 30
Mode in turn freezes to the first refrigeration compartment and the second refrigeration compartment, by the first refrigeration compartment and the second refrigeration compartment close
Synchronization freezes to the correspondence turn-on temperature of corresponding refrigeration compartment.
In the present embodiment, when the first refrigeration compartment of the frequency conversion refrigerator and/or the second refrigeration compartment are in cooling area, control
Molding block 30 controls compressor with maximum frequency of operation FmaxOperation, so that the first refrigeration compartment and/or the second refrigeration compartment can be fast
Speed drops to corresponding flat-temperature zone and meets the storage needs of user.
In the present embodiment, further, work as T1＜ Toff1And/or T2＜ Toff2When, control module 30 is additionally operable to control
Compressor stops freezing to the first refrigeration compartment and/or the second refrigeration compartment, so that between the first refrigeration compartment and/or the second refrigeration
The corresponding temperature of room is risen again naturally to corresponding shutoff temperature.
In the present embodiment, as the first temperature T1Less than the first shutoff temperature Toff1, and the second refrigeration compartment position
When flat-temperature zone, control module 30 will control compressor and stop freezing to the first refrigeration compartment, so that the of the first refrigeration compartment
One temperature is risen again naturally to the first shutoff temperature Toff1On, that is, allow the first refrigeration compartment refrigeration nature to be risen again to flat-temperature zone；Or
Person, the second temperature T2Less than the second shutoff temperature Toff2, and when the first refrigeration compartment is located at flat-temperature zone, control module
Control compressor is stopped freezing to the second refrigeration compartment by 30, so that the second temperature of the second refrigeration compartment is risen again naturally to second
Shutoff temperature Toff2On, i.e., the second refrigeration compartment is freezed to flat-temperature zone.Particularly, as the first temperature T1Less than described
First shutoff temperature Toff1, and the second temperature T2Less than the second shutoff temperature Toff2When, i.e. when the frequency conversion refrigerator
When one refrigeration compartment and the second refrigeration compartment are all in heating zone, control module 30 will control compressor shutdown, to save the change
The energy consumption of frequency refrigerator.
The present invention furthermore provides a kind of frequency conversion refrigerator.
In one embodiment, which includes the frequency conversion refrigerator refrigeration control device in previous embodiment.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of frequency conversion refrigerator refrigeration control method, which is characterized in that the frequency conversion refrigerator includes the first refrigeration compartment and second
Refrigeration compartment, the frequency conversion refrigerator refrigeration control method include the following steps：
Obtain the first temperature T of first refrigeration compartment1With the second temperature T of second refrigeration compartment2, and described in judgement
First temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, the first shutoff temperature Toff1Between size
Relationship and the second temperature T2With the second turn-on temperature T of preset second refrigeration compartmenton2, the second shutoff temperature
Toff2Between magnitude relationship；
Work as Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, to work as second refrigeration compartment by the second temperature T2It is natural
Go up to the second turn-on temperature Ton2When, first refrigeration compartment is by the first temperature T1Into first shutdown
Temperature Toff1For target, the first object running frequency F of compressor is calculateda1；
The compressor is controlled with first object running frequency Fa1Operation and freeze to first refrigeration compartment, until described the
One refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with second refrigeration compartmenton2In
Either case occur；
It is described to work as second refrigeration compartment by the second temperature T2Naturally go up to the second turn-on temperature Ton2When, institute
The first refrigeration compartment is stated by the first temperature T1Into the first shutoff temperature Toff1For target, the first of compressor is calculated
Target operating frequency Fa1The step of specifically include：
According to the second temperature T2With the second turn-on temperature Ton2It calculates and obtains second refrigeration compartment by described second
Temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tn；
It is risen again time t according to the expectionn, the first temperature T1With the first shutoff temperature Toff1It calculates and obtains described the
The expection cooling rate S of one refrigeration compartmentn；
According to the expected cooling rate SnCalculate the first object running frequency F for obtaining the compressora1。
2. frequency conversion refrigerator refrigeration control method as described in claim 1, which is characterized in that described according to the second temperature T2
With the second turn-on temperature Ton2It calculates and obtains second refrigeration compartment by the second temperature T2Go up to described second and opens
Machine temperature Ton2Expection rise again time tnThe step of before further include：
Second refrigeration compartment is obtained from the second temperature T2Second compartment temperature T after the minimum time t that rises again of rise2’；
Second refrigeration compartment is obtained by the second temperature T for calculating2Go up to the second turn-on temperature Ton2It is pre-
Phase rises again time tnFormula be：tn=(T2-Ton2)/(T2-T2’)*t；
For calculating the expection cooling rate S for obtaining first refrigeration compartmentnFormula be：
Sn=(T1-Toff1)/tn；
It is described according to the expected cooling rate SnCalculate the first object running frequency F for obtaining the compressora1The step of it
Before further include：
Obtain the environment temperature T of the indoor environment residing for the frequency conversion refrigeratora；
For calculating the first object running frequency F for obtaining the compressora1Formula be：
Fa1=Fref+(Ta-Tref)*α2；
Wherein TrefFor with TaThe highest reference ambient temperature of the degree of correlation, FrefIt is the preset frequency conversion refrigerator in TrefUnder benchmark
Running frequency, α=[(Ta- Tref)/tn- Sn]/tn 2。
3. frequency conversion refrigerator refrigeration control method as claimed in claim 1 or 2, which is characterized in that the control compressor
With first object running frequency Fa1It runs and freezes to first refrigeration compartment, until described in first refrigeration compartment entrance
First shutoff temperature Toff1Enter the second turn-on temperature T with second refrigeration compartmenton2In either case occur step
Further include after rapid：
It switches to and freezes to second refrigeration compartment；
Gone up naturally to the first turn-on temperature T with working as first refrigeration compartmenton1When, second refrigeration compartment enters
The second shutoff temperature Toff2For target, the second target operating frequency F of the compressor is calculateda2；
The compressor is controlled with the second target operating frequency Fa2Operation and freeze to second refrigeration compartment, until described the
Two refrigeration compartments enter the second shutoff temperature Toff2Enter the first turn-on temperature T with first refrigeration compartmenton1In
Either case occur.
4. frequency conversion refrigerator refrigeration control method as claimed in claim 3, which is characterized in that obtain first refrigeration described
First temperature T of compartment1With the second temperature T of second refrigeration compartment2, and judge the first temperature T1With preset institute
State the first turn-on temperature T of the first refrigeration compartmenton1, the first shutoff temperature Toff1And the second temperature T2With preset institute
State the second turn-on temperature T of the second refrigeration compartmenton2, the second shutoff temperature Toff2Between magnitude relationship the step of after, it is described
Frequency conversion refrigerator refrigeration control method further includes：
Work as T1＞ Ton1, and T2＜ Ton2When, the compressor is controlled with maximum frequency of operation FmaxOperation, and to first refrigeration
Compartment freezes, and first refrigeration compartment is freezed to the first turn-on temperature；
Work as T1＜ Ton1, and T2＞ Ton2When, the compressor is controlled with maximum frequency of operation FmaxOperation, and to second refrigeration
Compartment freezes, and second refrigeration compartment is freezed to the second turn-on temperature；
Work as T2＞ Ton2, and T1＞ Ton1When, the compressor is controlled with maximum frequency of operation FmaxIt runs and freezes to described first
Compartment and second refrigeration compartment carry out alternately switching refrigeration, until first refrigeration compartment enters the first turn-on temperature
Ton1Under and second refrigeration compartment enter the second turn-on temperature Ton2Under.
5. a kind of frequency conversion refrigerator refrigeration control device, which is characterized in that the frequency conversion refrigerator includes the first refrigeration compartment and second
Refrigeration compartment, the frequency conversion refrigerator refrigeration control device include：
Acquisition module, the first temperature T for obtaining first refrigeration compartment1With the second temperature of second refrigeration compartment
T2, and for judging the first temperature T1With the first turn-on temperature T of preset first refrigeration compartmenton1, first shutdown
Temperature Toff1Between magnitude relationship and the second temperature T2With the second booting temperature of preset second refrigeration compartment
Spend Ton2, the second shutoff temperature Toff2Between magnitude relationship；
Computing module, in Toff1≤T1≤Ton1, and Toff2≤T2≤Ton2When, to work as second refrigeration compartment by described
Two temperature T2Naturally go up to the second turn-on temperature Ton2When, first refrigeration compartment is by the first temperature T1Into institute
State the first shutoff temperature Toff1For target, the first object running frequency F of compressor is calculateda1；
Control module, for controlling the compressor with first object running frequency Fa1Operation and to the first refrigeration compartment system
It is cold, until first refrigeration compartment enters the first shutoff temperature Toff1Enter described second with second refrigeration compartment
Turn-on temperature Ton2In either case occur；
The computing module specifically includes：
First computing unit, for according to the second temperature T2With the second turn-on temperature Ton2It calculates and obtains second system
Cold compartment is by the second temperature T2Go up to the second turn-on temperature Ton2Expection rise again time tn；
Second computing unit, for being risen again time t according to the expectionn, the first temperature T1With first shutoff temperature
Toff1Calculate the expection cooling rate S for obtaining first refrigeration compartmentn；
Third computing unit, for according to the expected cooling rate SnCalculate the first object operation frequency for obtaining the compressor
Rate Fa1。
6. frequency conversion refrigerator refrigeration control device as claimed in claim 5, which is characterized in that
The acquisition module is additionally operable to obtain second refrigeration compartment from the second temperature T2Rise minimum is risen again after time t
Second compartment temperature T2', and the environment temperature T for obtaining the indoor environment residing for the frequency conversion refrigeratora；
Second refrigeration compartment is obtained by the second temperature T for calculating2Go up to the second turn-on temperature Ton2It is pre-
Phase rises again time tnFormula be：tn=(T2-Ton2)/(T2-T2’)*t；
For calculating the expection cooling rate S for obtaining first refrigeration compartmentnFormula be：
Sn=(T1-Toff1)/tn；
For calculating the first object running frequency F for obtaining the compressora1Formula be：
Fa1=Fref+(Ta-Tref)*α2；
Wherein TrefFor with TaThe highest reference ambient temperature of the degree of correlation, FrefIt is the preset frequency conversion refrigerator in TrefUnder benchmark
Running frequency, α=[(Ta- Tref)/tn- Sn]/tn 2。
7. such as frequency conversion refrigerator refrigeration control device described in claim 5 or 6, which is characterized in that the control module is additionally operable to
The compressor is being controlled with first object running frequency Fa1It runs and freezes to first refrigeration compartment, until described first
Refrigeration compartment enters the first shutoff temperature Toff1Enter the second turn-on temperature T with second refrigeration compartmenton2In
After either case occurs, switches to and freeze to second refrigeration compartment；
The computing module is additionally operable to after the control module switches to and freezes to second refrigeration compartment, with when described
First refrigeration compartment is gone up naturally to the first turn-on temperature Ton1When, second refrigeration compartment enters described second and shuts down
Temperature Toff2For target, the second target operating frequency F of the compressor is calculateda2；
The control module is additionally operable to control the compressor with the second target operating frequency Fa2It runs and freezes to described second
Compartment freezes, until second refrigeration compartment enters the second shutoff temperature Toff2Enter institute with first refrigeration compartment
State the first turn-on temperature Ton1In either case occur.
8. frequency conversion refrigerator refrigeration control device as claimed in claim 7, which is characterized in that the control module is additionally operable to work as T1
＞ Ton1, and T2＜ Ton2When, the compressor is controlled with maximum frequency of operation FmaxOperation, and to the first refrigeration compartment system
It is cold, first refrigeration compartment is freezed to the first turn-on temperature；And for working as T1＜ Ton1, and T2＞ Ton2When, control
The compressor is with maximum frequency of operation FmaxOperation, and freeze to second refrigeration compartment, by second refrigeration compartment
Under refrigeration to the second turn-on temperature；And for working as T2＞ Ton2, and T1＞ Ton1When, it controls the compressor and is run with maximum
Frequency FmaxOperation and first refrigeration compartment and second refrigeration compartment are carried out alternately to switch refrigeration, until described the
One refrigeration compartment enters the first turn-on temperature Ton1Under and second refrigeration compartment enter the second turn-on temperature Ton2It
Under.
9. a kind of frequency conversion refrigerator, which is characterized in that the frequency conversion refrigerator includes such as claim 5 to 8 any one of them frequency conversion
Refrigeration for refrigerator control device.
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| CN105823281B (en) * | 2016-03-21 | 2019-03-19 | 海信（山东）冰箱有限公司 | A kind of refrigeration control method of refrigeration equipment, control device and refrigeration equipment |
| CN107101451B (en) * | 2017-04-26 | 2019-12-10 | Tcl家用电器（合肥）有限公司 | refrigerator and refrigeration control method and device thereof |
| CN107202469B (en) * | 2017-05-26 | 2019-06-25 | 长虹美菱股份有限公司 | A kind of multi-cycle system avoids the control method and its refrigerator of short booting |
| CN107084577B (en) * | 2017-06-27 | 2021-02-02 | 海信容声(广东)冰箱有限公司 | Control method and control device of dual-system refrigerator and refrigerator |
| CN110425817B (en) * | 2019-08-28 | 2023-10-03 | 广东富信科技股份有限公司 | Self-adaptive temperature regulation method, device and system for breast milk refrigeration device |
| CN112902547B (en) * | 2019-12-02 | 2022-09-23 | 青岛海尔电冰箱有限公司 | Refrigerator parameter updating method, device and storage medium |
| CN113758129A (en) * | 2020-06-02 | 2021-12-07 | 青岛海尔电冰箱有限公司 | Control method of refrigerator |
| CN112484390B (en) * | 2020-11-26 | 2022-03-25 | 珠海格力电器股份有限公司 | Refrigerator temperature control method and device and refrigerator |
| CN115435543B (en) * | 2021-06-02 | 2023-07-21 | 青岛海尔生物医疗股份有限公司 | Method and device for controlling variable frequency compressor of refrigerator and refrigerator |
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| CN1273791C (en) * | 2004-07-30 | 2006-09-06 | 海信集团有限公司 | Method for controlling time-sharing work of frequency-conversion air-cooled refrigerator |
| CN100378420C (en) * | 2005-09-13 | 2008-04-02 | 海信集团有限公司 | Variable frequency refrigerator and control method thereof |
| CN100416196C (en) * | 2005-09-23 | 2008-09-03 | 海信（北京）电器有限公司 | Air-cooled variable frequency refrigerator and its control method |
| JP5097361B2 (en) * | 2006-05-15 | 2012-12-12 | ホシザキ電機株式会社 | Cooling storage and operation method thereof |
| US8209991B2 (en) * | 2007-03-13 | 2012-07-03 | Hoshizaki Denki Kabushiki Kaisha | Cooling storage and method of operating the same |
| CN101968663B (en) * | 2010-09-17 | 2013-09-25 | 合肥美的电冰箱有限公司 | Temperature control method and device of temperature changing subchamber and refrigerator with same |
| CN103398540B (en) * | 2013-07-29 | 2016-03-30 | 合肥美的电冰箱有限公司 | The control method of refrigerator and refrigerator |
| CN104154703B (en) * | 2014-07-22 | 2016-08-17 | 海信容声(广东)冰箱有限公司 | The control method for frequency of frequency conversion refrigerator |
| CN104236193A (en) * | 2014-09-04 | 2014-12-24 | 合肥美的电冰箱有限公司 | Air cooling refrigerator and control method of air cooling refrigerator |
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